photojournal.jpl.nasa.gov A Spacecraft Tour of the Solar System James Zimbelman Center for Earth and Planetary Studies National Air and Space Museum Opportunity at Sinus Meridiani Driven km (20.86 mi) as of 9/7/11 (sol 2709) Looking inside Endeavour Crater (8/10/11) Image taken by HiRISE camera during Phoenix landing. 10-km-diameter crater Heimdall, 20 km behind Phoenix. (PSP_008579_9020; PIA10705) The Phoenix Lander, in the northern polar latitudes (7/10) NASA/JPL-CalTech/JAXA/ESA (7/18/11)PIA14316 NASA/JPL-CalTech/UCLA/MPS/DLR/IDA (7/24/11) PIA14322 NASA/ESA/STScI/UMD (2/25/10) PIA14316 Dawn HST Vesta Jupiter Diam. ~11.2E Largest planet Gas-ball Dynamic atmosphere Dozens of moons (Galileo, 96) IoEuropa GanymedeCallisto (~3636 km)(~3120 km) (~5268 km)(~4818 km) The Galilean Satellites Io (Galileo) Diam. = 1.05 M Sulfur! Volcanoes! Active volcanoes! No craters! Reddish poles! (Galileo) Europa (Galileo) Diam. = 0.9 M Very bright, icy surface Lots of fractures Global ocean beneath the ice Ganymede (Galileo) Diam. = 1.5 M Largest moon in SS Bright and dark ice Lots of craters Lots of tectonism White polar caps Callisto Diam. = 1.4 M (Galileo) Darkest Gal. Sat. LOTS of craters Little tectonism Saturn HST (1998) Cassini (2004) Diam. ~9.0E Saturn backlit by the Sun (You are here) PIA08329 (9/15/06)